Strip-feeding device.



STRIP FEEDING DEVICE. APPLICATION FILED MAZLM, 1910.

1,023,165. 2 Patented Apr. 16,1912.

COLUMBIA PLANOORAPH 110., WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

OSCAR OEHRING, 0F BERLIN, GERMANY, ASSIGNOR 'IO AMERICAN STAMP & TICKETVENDING MACHINE 00., OF NEW YORK, N. Y., A CORPORATION OF JERSEY.

STRIP-FEEDING DEVICE.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Application filed March 22, 1910. Serial No. 550,831.

To all whom it may concern:

Be it known that I, OSCAR OEHRING, a subject of the Emperor of Germany,residing at Berlin, Germany, have invented new and useful Improvementsin Strip-Feeding Devices, of which the following is a specification.

This invention relates to a device designed more particularly as anattachment to a self printing mechanism for printing tickets or thelike, and if desired forming perforations or indentations between saidtickets, on a continuous web of paper for the purpose of being vended bya coin operated mechanism, although it may be used on machines of otherkinds and also when printed strips, wound on a roll, are withdrawnmanually therefrom.

The object of this invention is to provide a simple device forregulating the tension of a strip of paper wound into a roll which maybe blank on one or both sides for the purpose of printing thereon,either continuously or intermittently a series of impressions to form acontinuous ticket strip, or said strip may contain a series of printedsubject-matter representing tickets or the like to be torn from saidstrip when issued.

When a blank strip in roll form is fed to a so-called self-printingmachine, wherein the ticket impressions are printed on a strip as theyare demanded, the mechanism for feeding the strips to the printing formis operated only when a ticket is demanded and the operation of feedingcauses a strip to be delivered intermittently or by jerks through thesudden starting of the feeding devices. This jerky feeding owing to theinertia of the roll which at this time is stationary, is liable to tearthe strip and interrupt the operation of the mechanism to which theprinting device is connected; for the same reason when a ticket strip iswound in a roll for convenience and expediency in handling the same, theinertia of the roll often causes the strip to tear when the latter isdrawn therefrom as the tickets are disposed of. These and other defectsare overcome by the improved tension device forming the principal objectof the present invention and illustrated in the accompanying drawings,which show the device attached to the self-printing mechanism that mayor may not form a part of a vending machine.

In the drawings, a is a blank strip, usually of paper, wound on a rollI) rotatably mounted on a shaft 0 carried by one ormore supports frising from the frame of a selfprinting machine 72.. The strip a passesfrom the roll I) to and through a guide m on said printing machine andfed thereto either continuously or intermittently by means of a feedingdevice 0.

Loosely mounted on the shaft 0 at one end of the roll 6, or in someother suitable position, is a rocking arm 03 carrying at its lower end asmall guide roller it over which the strip a is carried from the striproll a to the printing and perforating mechanism, should the latterattachment be desired to Weaken sections of the strip. The roller hturns on a pin or one leg of a loop h attached to the rocking arm (Z,said pin or loop projecting into a curved slot g, concentric with theaxis of the shaft 0 in the support f on which said shaft is mounted.

Surrounding the shaft 0 and attached to any fixed point is a spring 6,the opposite end of which is fastened to the swinging arm cl, and by itstension tends to hold said arm in the position indicated in full lineson the drawing, thereby forming a loop in the strip a by means of theroll h thereon which draws from the strip roller a a length of the stripat equal to or slightly in excess of the amount necessary for a ticket.

Then the printing mechanism a is set in operation the feed roll 0thereof begins to rotate and as it bears against the strip a the latteris drawn downwardly through the guide we to the printing form, notshown.

This movement of the strip (1!. tends to rotate the strip roll a, but asthe resistance of the spring 6 is less than the inertia of the striproll a the arm (Z is caused to swing on the shaft 0 to the positionindicated by dotted lines, at which point a sufiicient amount of thestrip loop has been fed to the printing machine to produce a ticket.After the ticket has been printed, the feed mechanism 0 comes to restand the tension being removed from the strip a the spring 6 overcomesthe inertia of the roll and returns the swinging arm (Z to its initialposition drawing fro-m the roll-by this movement a sufiicient amount ofthe strip to form another ticket. It will thus be seen that the strip isnot subjected to sudden strains or jerks to overcome the inertia andwithdraw suflicient material for a ticket from the roll a" when theprinting feed is put in operation because the necessary length ofmaterial to form a ticket is contained within the loop previouslystated. The strip roll therefore will not be rotated by the feedmechanism of the printing machine, but as soon as the latter comes torest the tension of the spring 6 acting through the arm (Z and roller72. unrolls enough paper to form the next ticket to be printed.

The roll a may be a ticket strip roll instead of a roll of blank paper,in which case the tickets may be disbursed by a vending machine having aquick acting feed, or they may be torn from the strip by hand. In eithercase the tension device will prevent the strip from being torn orotherwise damaged as it is withdrawn from the roll.

What is claimed as new is 1. A device of the character describedcomprising a frame,aweb-feeding roll journaled thereon, intermittentlyactuated means for advancing said web and normally holding it taut, aguide tube in alinement with the axis of the feed-roll through whichsaid web advances, and reciprocating means loosely mounted on thefeed-roll shaft engaging the free length of said web, when saidadvancing means is inactive, to urge said web forwardly beyond the axisof said feed-roll, said reciprocating means being controlled by saidintermittently advancing means.

2. In a tension device comprisinga frame, a strip-feeding drum mountedthereon and means for intermittently advancing said through which saidstrip advances, alining with the axis of said drum, a journal way, aroller guided in said journal-way, said roller traversing said way inone direction 3 to unwind a portion of said strip and there by rotatesaid drum, means for holding said unwound portion bowed with respect tosaid guide and the axis of said drum, said advancing means causing saidroller to traverse said way in the opposite direction to draw said webtaut and thereby replace the rotation of said drum, and means carried bythe drum shaft for actuating said roller when in its last-namedposition.

3. A device of the kind described comprising in combination a frame, aweb-feeding drum mounted thereon, intermittent advancing means engagingsaid web, a j ournal way, reciprocating means adjacent said feed rolltraversing said journal-way and causing a portion of said web to movetherewith, said reciprocating means moving in one direction to rotatesaid drum but replacing said rotation when said advancing means isactive, and means loosely mounted on the'feed roll shaft, controlled bysaid advancing means, for actuating said reciprocating means.

4. A device of the kind described comprising a frame, a web-feeding drumrevolubly mounted thereon, a guide tube traversed by the web, aspring-pressed reciproeating arm loosely mounted on the shaft of thefeed-roll, a journal way, said tube alining with the axis of said feedroll and sald journal-way being concentric therewith, a

I tension roller carried at the free end of said garin and traversingsaid journal-way, said roller when at one end of said way bowing saidweb with respect to said tube and the I shaft of said drum, and meansfor drawing Esaid Web taut, thereby urging said tension I roller to theother end of said way.

strip, the combination of a guidetube In testimony whereof I havehereunto set my hand in presence of two subscribing witnesses.

OSCAR OEHRING. Witnesses:

HENRY HASPER,

VVOLDEMAR HAUPT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

